package com.sky.controller.user;

import com.sky.constant.StatusConstant;
import com.sky.dto.DishDTO;
import com.sky.entity.Dish;
import com.sky.result.Result;
import com.sky.service.DishService;
import com.sky.vo.DishVO;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.*;

import java.util.List;
import java.util.Set;

@RestController("userDishController")
@RequestMapping("/user/dish")
@Slf4j
@Api(tags = "C端-菜品浏览接口")
public class DishController {
    @Autowired
    private DishService dishService;
    @Autowired
    private RedisTemplate redisTemplate;

    /**
     * 根据分类id查询菜品
     *
     * @param categoryId
     * @return
     */
    @GetMapping("/list")
    @ApiOperation("根据分类id查询菜品")
    public Result<List<DishVO>> list(Long categoryId) {

        String key="dish_" +categoryId;
        List<DishVO>list=(List<DishVO>)redisTemplate.opsForValue().get(key);
        if(list != null && list.size() > 0){
            //如果存在，直接返回，无须查询数据库
            return Result.success(list);
        }

        Dish dish = new Dish();
        dish.setCategoryId(categoryId);
        dish.setStatus(StatusConstant.ENABLE);//查询起售中的菜品

      list = dishService.listWithFlavor(dish);
      redisTemplate.opsForValue().set(key, list);
        return Result.success(list);
    }
    private void cleanCache(String pattern){
        Set keys=redisTemplate.keys(pattern);
        redisTemplate.delete(keys);
    }
    @PostMapping
    @ApiOperation("新增菜品")
    public  Result save (@RequestBody DishDTO dishDto){
        log.info("新增菜品：{}",dishDto);
        dishService.saveWithFlavor(dishDto);
        String key="dish_"+dishDto.getCategoryId();
        cleanCache(key);
        return Result.success();
    }
    @DeleteMapping
    @ApiOperation("菜品批量删除")
    public  Result delete(@RequestParam List<Long>ids){
        log.info("菜品批量删除：{}",ids);
        dishService.deleteBatch(ids);
        cleanCache("dish_*");
        return  Result.success();
    }
    @PutMapping
    @ApiOperation("修改菜品")
    public Result update(@RequestBody DishDTO dishDTO){
        log.info("修改菜品：{}",dishDTO);
        dishService.updateWithFlavor(dishDTO);
        cleanCache("dish_*");
        return  Result.success();

    }
    @PutMapping("/status/{status}")
    @ApiOperation("菜品的起售停售")
    public Result<String>startOrstop(@PathVariable Integer status, Long id)
    {
        dishService.startOrStop(status, id);

        //将所有的菜品缓存数据清理掉，所有以dish_开头的key
        cleanCache("dish_*");

        return Result.success();
    }

}
